I had a look through your syslog (which is a part of the diagnostics file) and I did not find any evidence that your SATA board had been recognized and initialized. You might want to power down the server and move the card to the other 16X slot.
Fast forward to December, and we now have a retail product. There are no ROG aesthetics, yet it has all the functions, headers, and diagnostics enthusiasts could need in such a device. While this tool won't make you an expert overclocker at the drop of a fan, it's a convenient device for fine tweaking and real-time monitoring.
Elmor Labs has made many specialist products for the DIY extreme overclocking enthusiast space, but this tool picks up where Asus left off. The pricing of the Elmor Labs OC Panel is yet to be disclosed at the time of writing.
Of course, credit partially goes to the Asus ROG team as this tool wouldn't have been possible had the OCP header been discontinued in the post-Z97 chipset days. It would be even better if an open-source standard could be developed and updated that involved more brands, overclockers, and enthusiasts, but you know what they say about standards.
Once I know more about where the non-functional monitor is connected on the dock and if swapping ports helps or not we can proceed from there. It may also be helpful to get some diagnostics for the system.
@RonM Update: My first suggestion after looking at the diagnostics is to update the Intel graphics drivers on the system: _win_101.1340.exe (30.0.101.1340 vs 30.0.100.9864 installed now)
ASUS PC Diagnostics utility (for Windows) is an easy to use way for ASUS PC users to gain system information about the PC and perform hardware diagnostics tests such as stress tests. It's freeware that can come bundled with some ASUS PCs and it's available for download from external file sharing websites. This software is better than competitors' because it made directly by ASUS for ASUS PCs so there is no worry about the incompatibility that might arise from trying to use another publisher's utility. The diagnostic tool has the following features:
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